{"id":70429,"date":"2025-08-05T12:00:00","date_gmt":"2025-08-05T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/robot-elephant-flexible-et-rigide-grace-a-innovation"},"modified":"2025-08-05T23:05:06","modified_gmt":"2025-08-05T23:05:06","slug":"robot-elephant-flexible-et-rigide-grace-a-innovation","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/robot-elephant-flexible-et-rigide-grace-a-innovation","title":{"rendered":"Robot-\u00c9l\u00e9phant Flexible et Rigide Gr\u00e2ce \u00e0 Innovation"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Senegal. <\/strong><\/span>En mai 2025, le laboratoire CREATE de l\u2019Ecole polytechnique fe\u0301de\u0301rale de Lausanne (Suisse), spe\u0301cialise\u0301 dans la conception de robot, pre\u0301sentait une main humanoi\u0308de combinant l\u2019approche robotique traditionnelle \u2013 avec actionneurs et e\u0301le\u0301ments rigides \u2013 et la robotique souple. Deux mois plus tard, une e\u0301quipe du me\u0302me laboratoire a pre\u0301sente\u0301 dans Sciences Advances une autre approche me\u0302lant rigidite\u0301 et flexibilite\u0301.<\/p>\n<p>Les chercheurs ont mis au point une structure en treillis, en mousse fabrique\u0301e par impression 3D. Elle consiste en un assemblage de petits e\u0301le\u0301ments de base conc\u0327us selon un type particulier de formes (en X par exemple) selon les besoins. Ils peuvent e\u0302tre juxtapose\u0301s mais aussi imbrique\u0301s les uns dans les autres, donnant ce que les chercheurs appellent une \u00ab cellule \u00bb. L\u2019ide\u0301e consiste a\u0300 programmer la re\u0301partition de ces cellules selon leur forme et leur rigidite\u0301 pour cre\u0301er une structure globale capable d\u2019imiter les mouvements naturels des diverses parties d\u2019un animal par exemple.<\/p>\n<p><b>Quatre pattes et une trompe<\/b><\/p>\n<p>En guise de de\u0301monstration, l\u2019e\u0301quipe a fabrique\u0301 un e\u0301le\u0301phant dont les quatre pattes et la trompe sont anime\u0301es par des moteurs et des ca\u0302bles mais dont toute la souplesse repose sur ce concept de treillis. Choisir ce mode\u0300le permet d\u2019associer, dans un me\u0302me robot, la relative rigidite\u0301 des membres et la flexibilite\u0301 de la trompe compose\u0301e, chez un vrai e\u0301le\u0301phant, de 40.000 muscles et aucun os.<\/p>\n<p>La trompe du robot mesure un peu plus de 32 cm, large de 4,8 cm a\u0300 sa base pour terminer a\u0300 2,4 cm a\u0300 son extre\u0301mite\u0301. Elle fonctionne avec quatre moteurs. Pour obtenir toute la flexibilite\u0301 musculaire voulue, mais aussi reproduire les mouvements de torsion et de rotation typiques de l\u2019organe, \u00ab l\u2019e\u0301paisseur et la taille des cellules de la structure en treillis sont ajuste\u0301es sur la longueur de la trompe \u00bb. La largeur des fils constituant le treillis e\u0301volue aussi, allant de 1,3 a\u0300 0,5 mm selon les endroits de la trompe. Les pattes sont dote\u0301es de moteurs activant des articulations a\u0300 deux degre\u0301s de liberte\u0301.<\/p>\n<p>Au final, le concept permet d\u2019atteindre une fluidite\u0301 et un contro\u0302le des mouvements difficiles a\u0300 obtenir avec d\u2019autres me\u0301thodes.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <span style=\"color: #ff6600\">Senegal<\/span>, suivez <span style=\"color: #ff6600\">Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. En mai 2025, le laboratoire CREATE de l\u2019Ecole polytechnique fe\u0301de\u0301rale de Lausanne (Suisse), spe\u0301cialise\u0301 dans la conception de robot, pre\u0301sentait une main humanoi\u0308de combinant l\u2019approche robotique traditionnelle \u2013 avec actionneurs et e\u0301le\u0301ments rigides \u2013 et la robotique souple. Deux mois plus tard, une e\u0301quipe du me\u0302me laboratoire a pre\u0301sente\u0301 dans Sciences Advances [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":70428,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-70429","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Robot-\u00c9l\u00e9phant Flexible et Rigide Gr\u00e2ce \u00e0 Innovation - Senegal<\/title>\n<meta name=\"description\" content=\"En mai 2025, le laboratoire CREATE de l\u2019Ecole polytechnique fe\u0301de\u0301rale de Lausanne (Suisse), spe\u0301cialise\u0301 dans la concep ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/robot-elephant-flexible-et-rigide-grace-a-innovation\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Robot-\u00c9l\u00e9phant Flexible et Rigide Gr\u00e2ce \u00e0 Innovation\" \/>\n<meta property=\"og:description\" content=\"En mai 2025, le laboratoire CREATE de l\u2019Ecole polytechnique fe\u0301de\u0301rale de Lausanne (Suisse), spe\u0301cialise\u0301 dans la concep ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/robot-elephant-flexible-et-rigide-grace-a-innovation\" \/>\n<meta property=\"og:site_name\" content=\"Senegal\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-05T12:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-05T23:05:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/08\/sm_1754463527.209314.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/robot-elephant-flexible-et-rigide-grace-a-innovation#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/robot-elephant-flexible-et-rigide-grace-a-innovation\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Robot-\u00c9l\u00e9phant Flexible et Rigide Gr\u00e2ce \u00e0 Innovation\",\"datePublished\":\"2025-08-05T12:00:00+00:00\",\"dateModified\":\"2025-08-05T23:05:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/robot-elephant-flexible-et-rigide-grace-a-innovation\"},\"wordCount\":412,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/robot-elephant-flexible-et-rigide-grace-a-innovation#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/08\/sm_1754463527.209314.jpg\",\"keywords\":[\"Senegal\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/robot-elephant-flexible-et-rigide-grace-a-innovation#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/robot-elephant-flexible-et-rigide-grace-a-innovation\",\"url\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/robot-elephant-flexible-et-rigide-grace-a-innovation\",\"name\":\"Robot-\u00c9l\u00e9phant Flexible et Rigide Gr\u00e2ce \u00e0 Innovation - 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